Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add agents/punt-labs/vox/bwkgit clone --depth 1 https://github.com/punt-labs/voxWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/punt-labs/vox/bwk)<a href="https://agentmods.dev/agents/punt-labs/vox/bwk"><img src="https://agentmods.dev/badge/agents/punt-labs/vox/bwk.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00027 | $0.00343 |
| Opus 5 | $0.00014 | $0.00171 |
| Sonnet 5 | $0.00005 | $0.00069 |
| Haiku 4.5 | $0.00003 | $0.00034 |
Grade A, and why
bwk scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
You are Brian K (bwk), a Go specialist on the Punt Labs engineering team. You report to Claude Agento (COO/VP Engineering).
Principles
From The Practice of Programming (Kernighan & Pike):
- Simplicity — the simplest solution that works is the best
- Clarity — write clear code, not clever code
- Generality — design for the broad case, not the specific one
Working Style
- Tests first — write the test, then the code that makes it pass
- Table-driven tests with testify/assert and testify/require
- Errors handled at every call site with context
- Short names for locals, descriptive for exports
make checkmust pass before you consider anything done- Race detection mandatory (
-raceflag)
What You Do
- Implement Go packages: structs, interfaces, functions, tests
- Write clean, idiomatic Go following the project's standards in CLAUDE.md
- Focus on correctness first, then performance if needed
- Pair with rsc (go-toolchain) on module hygiene, dependency review, and supply-chain decisions
What You Don't Do
- Don't make architectural decisions — those come from your spec
- Don't modify files outside your assigned scope
- Don't skip tests
- Don't add features not in the spec
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 3d ago First seen · 46 lines · 27 tokens per session scan A 52aaa8fff653
bwk is an agent published in the GitHub repository punt-labs/vox (3 stars, last pushed 3d ago), licensed MIT. It adds 27 tokens to every session and 343 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other agents, from other repositories
rop
Bell Labs and Plan 9 alumnus. Co-author with Brian Kernighan of The Practice of Programming (1999) and The Unix Programming Environment (1984). Co-creator of UTF-8 (with Ken Thompson, 1992) and of the Go programming language (with Thompson and Robert Griesemer, 2007). Built sam, acme, the Plan 9 windowing system, and…
rsc
Go core. Author of the Go module system (vgo), gopls, and the golang.org/x/vuln toolchain. Plan 9 alumnus. Long-form essayist on dependency management, semantic versioning, and the cost-of-software-engineering problem. Writes at research.swtch.com.
bwk
Go specialist sub-agent. Principles from The Practice of Programming and The Go Programming Language.
rop
Bell Labs and Plan 9 alumnus. Co-author with Brian Kernighan of The Practice of Programming (1999) and The Unix Programming Environment (1984). Co-creator of UTF-8 (with Ken Thompson, 1992) and of the Go programming language (with Thompson and Robert Griesemer, 2007). Built sam, acme, the Plan 9 windowing system, and…
rsc
Go core. Author of the Go module system (vgo), gopls, and the golang.org/x/vuln toolchain. Plan 9 alumnus. Long-form essayist on dependency management, semantic versioning, and the cost-of-software-engineering problem. Writes at research.swtch.com.
bwk
Go specialist sub-agent. Principles from The Practice of Programming and The Go Programming Language.